Technical Archive

Rolex
Datejust 31 178248-0093— lug 16mm

Rolex Datejust 31 178248-0093: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 31 Yellow Gold Domed / President / Champagne Floral

Artisanal Note

"This model requires a precise 16mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 178248-0093
Lug Width
16 mm

The essential strap measurement.

Browse 16mm straps →
Reference

178248-0093

Movement

Rolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Datejust 31 represents the female version of the Rolex Datejust collection, with a 31mm case diameter. It is equipped with the automatic Caliber 2235 chronometer-certified, with date indication. The reference 178248-0093 features 16mm lugs and offers hour, minute, second and date functions.

FAQ

What is the lug width of the Rolex Datejust 31 ref. 178248-0093?

The lug width of the Rolex Datejust 31 ref. 178248-0093 is 16 millimetres. This measurement represents the internal distance between the two attachment points of the case where the strap is inserted. To verify correctly, use a digital calliper and measure at the upper part of the case, between the inner edges of the two lugs.

Which strap material is best suited to the Datejust 31 178248-0093 in yellow gold?

For the Datejust 31 in 18-carat yellow gold, alligator is the most aristocratic choice, particularly Porosus alligator with regular texture and luminous patina that dialogues splendidly with the gold. Excellent alternatives include shell cordovan for the purist, which develops a fascinating patina over time, or vegetable-tanned calf leather for those who prefer sustainability and comfort. Each material imparts a different character to the timepiece, allowing versatility of use.

How do I change the strap on the Rolex Datejust 31 ref. 178248-0093?

Changing the strap on the Datejust 31 requires precision. Position the watch on a soft surface, locate the terminal lugs and use a spring bar tool to gently compress the internal spring. Once the lugs are freed, the old strap slides away. For installation of the new strap, align the holes in the lug with the case pins and press until the spring engages again. We recommend maximum caution: if inexperienced, entrust this task to a specialist watchmaker.

Is the strap for the Datejust 31 178248-0093 compatible with aftermarket Rolex models?

Yes, any strap with a 16mm lug width is theoretically compatible. However, to preserve the aesthetic integrity of the 178248-0093 in yellow gold, we recommend bespoke artisanal straps that respect the proportions of the model. Our 16mm Rolex straps are designed considering case thickness, overall length and colour matching with yellow gold, guaranteeing proportional harmony.

How long does a leather strap last? Does it require maintenance?

A high-quality leather strap (alligator, shell cordovan, calf) has an average lifespan of 3-5 years with daily wear, extendable to 7-10 years with proper care. Maintenance is minimal: keep the leather dry, avoid prolonged exposure to sun and water, and occasionally apply a specific watch leather protector balm. The natural patina that develops over time is desirable, not a flaw. Rolex recommends periodic replacement to keep the strap in optimal condition.

The next step

The right strap isn’t chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

By appointment only · Milan

The atelier's website: casatimilano.com